Misalai 3 na tambayoyin motsi a tsaye sama
1. Ana jefa ƙwallon a tsaye sama da saurin farko na 20 m/s. A ƙayyade matsakaicin tsayin ƙwallon. g = 10 m/s2
Tattaunawa
A cikin motsi na tsaye sama, lokacin da abu ya motsa sama, yana raguwa, kuma idan ya koma ƙasa, yana ƙaruwa. Saboda haka, motsi na tsaye sama shima misali ne na GLBB.
Tsarin GLBB :
vt = vo + a
s = vo t + ½ a2
vt2 = vo2 + 2 axles
Misalai 3 na tambayoyin motsi na tsaye zuwa ƙasa
1. Ana jefa ƙwallon a tsaye ƙasa daga ginin bene mai hawa da yawa tare da saurin farko na m10/s kuma ya isa ƙasa bayan daƙiƙa 2. Menene saurin ƙwallon lokacin da ya bugi ƙasa? g = m10/s2
Tattaunawa
An san cewa:
vo = 10m/s
t = daƙiƙa 2
g = 10 m/s2
An tambaya:
Misalai 16 na Tambayoyin Motsin Faɗuwa Kyauta.
1. 'Ya'yan kwakwar suna cirewa daga tushe kuma suna isa ƙasa bayan daƙiƙa uku. Menene saurin kwakwar idan ta faɗi ƙasa? g = 10 m/s2
Tattaunawa
An sani :
t = daƙiƙa 3
g = 10 m/s2
An tambaya :
Misalai 4 na adadi da aka samo, girma na ƙasa da ƙasa da kuma dabarun raka'a
| Adadin da aka samo | Tsarin dabara | Menene babban adadin da ya ƙunshi? | Girman adadi da aka samo | Tsarin Ƙasashen Duniya na Raka'o'i Adadin da aka samo |
| Lusa | Tsawon x faɗi | Tsawon (2) | [L2] | m2 |
| Girman wani kuboid | Tsawon x faɗi x tsayi | Tsawon (3) | [L3] | m3 |
| Yawan yawa | Mass / Girma | Tsawo (1), tsayi (3) | [M] / [L]3] = [M][L-3] | Kg / m3 |
| Kecepatan | Nisa / lokaci | Tsawon (1), lokaci (1) | [L] / [T] = [L] [T]-1] | m / s |
| Hanzari | Sauri / lokaci | Tsawon (1), lokaci (2) | [H] [T]-1] / [T] = [L] [T]-2] | m / s2 |
| Gaya | Mass x hanzari | Tsawa (1), tsayi (1), lokaci (2) | [M][L][T]-2] | Kg m/s2 |
| Ƙoƙari | Matsar da ƙarfi x | Tsawa (1), tsayi (2), lokaci (2) | [M][L][T]-2][L] = [M][L2][T-2] | Kg m2/s2 |
Domin gano adadin adadi na asali, da farko ka samo dabarar adadi da aka samo.
Umarnin gwajin dokar Archimedes
Manufar gwajin dokar Archimedes:
– Dalibai za su iya auna girma da nauyin ruwan da wani abu da aka nutsar a cikin ruwa ya kone.
– Dalibai za su iya sani da fahimtar dokar Archimedes
Kayan aiki da kayan aiki:
– Akwati mai matsakaicin girma (1)
– Ƙaramin akwati (1)
– Injin auna ƙarfi (1)
– Load (1)
Misalan Tambayoyi 6 na Dokar Archimedes
1. Wane girman dutse ne aka sanya a cikin ruwan teku idan nauyin ruwan teku da dutsen ya kone ya kai Newtons 2? Yawan ruwan teku = 1025 kg/m23.
Tattaunawa
Misalai 5 na tambayoyin da suka shafi motsa jiki
1. Nauyin kayan da ke cikin iska shine 3 N, nauyin kayan da ke cikin ruwa shine 2,8 N. Nawa ƙarfin da ke tashi a kan kayan yake yi?
Tattaunawa:
Fahimtar Dokar Pascal
Ta yaya jak/lift na hydraulic yake aiki idan ana amfani da shi don ɗaga mota? Ta yaya birki na hydraulic yake aiki idan ana amfani da shi don rage gudu a mota?
Kamar yadda muka koya a cikin maudu'in Matsi na Ruwa , kowace ruwa tana yin matsi a kan duk abubuwan da ta taɓa. Ruwan da muka saka a cikin gilashi yana yin matsi a bangon gilashin. Haka nan, lokacin da muka yi wanka a cikin wurin wanka ko ruwan teku, ruwan yana yin matsi a jikinmu gaba ɗaya.
Misalai 9 na Dokar Pascal
1. Yankin giciye na kowane jack na hydraulic shine 0,04 m2 da kuma 0,10 m2Idan ƙarfin shigarwar shine Newtons 5, menene matsakaicin ƙarfin fitarwa?
Tattaunawa:
An san cewa:
A1 = 0,04 m2
A2 = 0,10 m2
F1 = 5N
An tambaya: F2 ?
Amsa:
A darasin kimiyyar lissafi da ya gabata, mun yi nazarin batutuwan da suka shafi yanayin barbashi da yanayin juyawa . A cikin yanayin yanayin barbashi, mun yi nazarin barbashi a cikin motsi na fassara ( motsi na tsaye , motsi na zagaye , motsi na parabolic ). A cikin yanayin yanayin juyawa, mun yi nazarin jikin masu tauri masu juyawa. A cikin wannan batu, mun yi nazarin abubuwa a cikin daidaito. Akwai nau'ikan daidaito guda biyu, wato daidaiton tsaye da daidaiton tsauri. A cewar dokar farko ta Newton, abu yana cikin daidaiton tsaye idan abu yana hutawa kuma abu yana cikin daidaiton motsi idan abu yana motsi a cikin saurin da ya dace. Wannan takarda ta fi mai da hankali kan tattaunawa kan daidaiton tsaye (abun da ke tsaye).